Personal Computing Device Having Single-Cell Battery

1. A device comprising: a processing subsystem; an input subsystem; a display; a wireless communication subsystem; an operating system suitable for execution by a desktop computer or laptop computer; a single-cell battery not connected in series with any other single-cell battery; and a power subsystem having power supplied by the single-cell battery and configured to provide operating power to each of the display, processing, input, and wireless communication subsystems.

2. The device of claim 1 , wherein the wireless communication subsystem includes an 802.11-compliant wireless network controller.

3. The device of claim 1 , wherein the single-cell battery is a lithium ion battery.

4. The device of claim 1 , wherein the single-cell battery has a nominal operating voltage of approximately 3.8 volts DC.

5. The device of claim 1 , wherein the processing subsystem includes a processor operatively coupled to DDR SDRAM memory.

6. The device of claim 1 , wherein the wireless communication subsystem includes a Bluetooth-compliant wireless controller.

7. The device of claim 1 , further comprising an interdevice communication subsystem configured to provide communication between the device and an external device via a serial connection.

8. The device of claim 7 , wherein the interdevice communication subsystem is compliant with an IEEE 1394 serial interface.

9. The device of claim 1 , wherein the device is configured to operate approximately 3-6 hours under a normal operating condition using power supplied solely by the single-cell battery.

10. The device of claim 1 , wherein the device has a weight of less than 9 ounces.

11. The device of claim 1 , wherein the device has a size comparable to a personal digital assistant (PDA) device configured to be held in the palm of a user.

12. The device of claim 1 , wherein the device has a width of approximately 2.9 inches or less.

13. The device of claim 1 , wherein the display has a resolution of approximately 800×480 pixels.

14. The device of claim 1 , further comprising one or more applications having functionality comparable to corresponding applications configured to be executed on a desktop computer or laptop computer.

15. The device of claim 1 , wherein the device comprises a cellular phone.

16. The device of claim 1 , wherein the input subsystem comprises a touchscreen display.

17. The device of claim 1 , further comprising a persistent storage subsystem.

18. The device of claim 1 , further comprising an application comparable to a corresponding version of the application configured to be executed on a desktop computer or laptop computer.

19. The device of claim 1 , wherein the single-cell battery is not connected in series with any other single-cell battery.

20. The device of claim 19 , wherein the power subsystem comprises at least one single-cell lithium-ion battery with a nominal operating voltage of approximately 3.8 volts DC.